iPad and iPhone applications to plan route with public transportation

Hi, We have a website that allows people to plan a route with public transportation. The website calculates different hours based on chosen departure or arrival and gives the user several options. It shows how to get from A to B using which means of public transport, where to switch, how far walking distances are etc. We would like to have an iPad and iPhone (maybe an Android) application that does the same. There is an application in The Netherlands called 9292 that has the options we want in the app, except for two things: - When the user arrives at a point where they have to switch buses, bus to metro, metro to taxi or whatever, the app should notify them at that location - When the user has to switch to taxi, there should be an option to directly request a taxi from the main switchboard (an email with geo information should be sent if the user presses "order taxi" The applications HAVE to be developed well enough so that they will be accepted into the iTunes store. We want to work with several milestones, with the last milestone being released only after the app has been accepted in the App store. Android is optional. For reference, please check out the 9292 App, it's used in The Netherlands and accompanied by a website which can be found here: www.9292.nl. SIMPLICITY AND EASE OF USE ARE KEY!!!!